Highly anisotropic thermal conductivity of mesogenic epoxy resin film through orientation control

Ning Tang; Shingo Tanaka; Yoshitaka Takezawa; Kiyoshi Kanie

doi:10.1002/app.51396

Highly anisotropic thermal conductivity of mesogenic epoxy resin film through orientation control

Ning Tang, Shingo Tanaka, Yoshitaka Takezawa, Kiyoshi Kanie

Division of Inorganic Material Research

Research output: Contribution to journal › Article › peer-review

Abstract

To develop insulating materials with a high thermally conductive anisotropy, planarly aligned mesogenic epoxy (ME) resin film was fabricated by uniaxial coating on a hydrophobic polyethylene terephthalate substrate. Grazing incidence small-angle X-ray scattering (GISAXS) and transmission SAXS measurements exhibited that the films spontaneously formed uniaxially aligned monodomain-like smectic structures by curing on the hydrophobic substrate. Then, an in- and out-of-plane thermal conductivity of 10 and 0.048 W m⁻¹ K⁻¹ and outstanding thermal conductivity anisotropy of 208 have been confirmed, respectively. The ME resin films with high thermal conductivity can be applied as insulating materials for multiple-layer electrical and electronic devices.

Original language	English
Article number	51396
Journal	Journal of Applied Polymer Science
Volume	138
Issue number	47
DOIs	https://doi.org/10.1002/app.51396
Publication status	Published - 2021 Dec 15

Keywords

applications
conducting polymers
films
liquid crystals

ASJC Scopus subject areas

Chemistry(all)
Surfaces, Coatings and Films
Polymers and Plastics
Materials Chemistry

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10.1002/app.51396

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title = "Highly anisotropic thermal conductivity of mesogenic epoxy resin film through orientation control",

abstract = "To develop insulating materials with a high thermally conductive anisotropy, planarly aligned mesogenic epoxy (ME) resin film was fabricated by uniaxial coating on a hydrophobic polyethylene terephthalate substrate. Grazing incidence small-angle X-ray scattering (GISAXS) and transmission SAXS measurements exhibited that the films spontaneously formed uniaxially aligned monodomain-like smectic structures by curing on the hydrophobic substrate. Then, an in- and out-of-plane thermal conductivity of 10 and 0.048 W m−1 K−1 and outstanding thermal conductivity anisotropy of 208 have been confirmed, respectively. The ME resin films with high thermal conductivity can be applied as insulating materials for multiple-layer electrical and electronic devices.",

keywords = "applications, conducting polymers, films, liquid crystals",

author = "Ning Tang and Shingo Tanaka and Yoshitaka Takezawa and Kiyoshi Kanie",

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AU - Tang, Ning

AU - Tanaka, Shingo

AU - Takezawa, Yoshitaka

AU - Kanie, Kiyoshi

PY - 2021/12/15

Y1 - 2021/12/15

N2 - To develop insulating materials with a high thermally conductive anisotropy, planarly aligned mesogenic epoxy (ME) resin film was fabricated by uniaxial coating on a hydrophobic polyethylene terephthalate substrate. Grazing incidence small-angle X-ray scattering (GISAXS) and transmission SAXS measurements exhibited that the films spontaneously formed uniaxially aligned monodomain-like smectic structures by curing on the hydrophobic substrate. Then, an in- and out-of-plane thermal conductivity of 10 and 0.048 W m−1 K−1 and outstanding thermal conductivity anisotropy of 208 have been confirmed, respectively. The ME resin films with high thermal conductivity can be applied as insulating materials for multiple-layer electrical and electronic devices.

AB - To develop insulating materials with a high thermally conductive anisotropy, planarly aligned mesogenic epoxy (ME) resin film was fabricated by uniaxial coating on a hydrophobic polyethylene terephthalate substrate. Grazing incidence small-angle X-ray scattering (GISAXS) and transmission SAXS measurements exhibited that the films spontaneously formed uniaxially aligned monodomain-like smectic structures by curing on the hydrophobic substrate. Then, an in- and out-of-plane thermal conductivity of 10 and 0.048 W m−1 K−1 and outstanding thermal conductivity anisotropy of 208 have been confirmed, respectively. The ME resin films with high thermal conductivity can be applied as insulating materials for multiple-layer electrical and electronic devices.

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KW - conducting polymers

KW - films

KW - liquid crystals

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Highly anisotropic thermal conductivity of mesogenic epoxy resin film through orientation control

Abstract

Keywords

ASJC Scopus subject areas

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